LYRA Graphite Crayons are perfect for sketching and shading large areas. Add depth to your drawing with these 12 millimeter, paper wrapped crayons will keep your hands clean. They are non water-soluble, non-staining and erasable when dry. LYRA Graphite Crayons are available in a set of 24 with an assortment of three hardness degrees; 2B, 6B and 9B, and comply with even the most stringent quality standards. Draw, sketch design and empower your creativity with artist products from LYRA.